Typewriting machine



Mar. 3. 1925.

A. G.- F. KUROWSKI TYPEWRITING MACHINE Original Filedfict. 15, 1920Reisa ued Mar. 3, 1925.

" UNITED STATES PATENT OFFICE.

"a. r. ruaowsm, or naooiznrmnnw YOEK, .assreivon To-nmaawcon *mnwauaacomm, or NEW YORK, 1v. Y a coarom'mon or DELAWARE.

TYPEWRITING MACHINE.

Original 80.1,465641, dated September 25, was, Serial no. 417,192,fi1edOctober s, 1920. a lication.

for reissue filed January 14;.1921, Serial No. 2,401.

1'0 at; av/Lam, u concern:

Be it known that I, Arm G. F. Ktmowsxna citizen of the United States,residing I .in Brooklyn Borough, in the county of: Kings, city andStateof New York, have invented certain'new and'useful Improvements inTypewritnig Machines; and I do -herebydeclare the following to be afull, clear, and exact description of the-inven- -tion,'such as willenable others skilled'in the artvtowhich it appertains to make and use'thesame. V

This invention relates to the mechanism of typewriting machines, parleticularly those of the type known as 'tl 1e Underwood standardportabletypewriter.

'Themain object of the invention is to secure increased convenience andease of.

- operation'of the line-spacing mechanism.

Z -"Other and more particular objects are to 40 a normal tendency, suchas bybeing springpressed to rise to an upstanding osition of y-securethese above noted advantages without interfering with the compactenclosure-of the portable machine within the, usual protcctive cover. orcarrying case providedfor these machines, and without increasing thenumber of operations heretofore required in closing the cover into placeon the machine, or in opening orremoving the cover part of the casing..The invention includes a long line-space lever which may be pivoted ona vertical pivotto'swing in the direction of the return of the usualcarria e or platen frame, and to extendforward orsomedis tauce to thefront of the platen-frame, so

- as to be both conveniently andeasily oper Med, and a finger-pieceforming a tip movably mounted on the torward'end of the line-space leverat a point well forward of the platen and platen-frame, and having usein which it projects or stazi s elevated above t her parts of themachine, but whlch may be pressed down by the cover or casing to, alower position in compact relation to the forward end of the line-spacelever, so

and which will rise automatically .to'its upstandingzposition whezmheressure thereon closed within its casin which shown in" line-spacingsection, 3

jOlllIlkllGil-l j' means of its axle 2 platen frame; of which the left Iwhihh will be towardthe-right from "the as to provide for the enclosureof the machine-within its usual cover or carrying case,

inafter appear Inf theaccompan ing muvvulgfi, 1 :Figure "1' is aperspective view of the left end of the platen frameand platen-of'an; IUndervvoed portable typewriting machine v having embodied therein theimproved line'- 1 spacing mechanism of thepresent invention. Figure 2 isa frontelevation, with parts omitted, of "the left "endof themachine-en- Otherfeatures and auvantages will here 5::

transverse vertical sec on, 1 I Figure 3 is an enlarged view of theforward'ena'l of the line spa'ce' lever and the foldahh ger-piececarriedthera y, shownfi partly in n view and partly in orizontallustrate themountinglot the foldable er-piece-.,

In the noodiment of the invention illustrated in iii-z drawings,'usualplaten end wall 3 appears in Figures 1 and 2 2 The platen 1 isprovided with a usualline-spaee; wheel 4, the teeth of whichare enageable by an actuatingstud 5 projecting ateral-l 8Q; from the free endof a line-space pawl pivoted at 7 to an 'inwardly extending lever arm 8shown as forming art of a forward ly-extending line-s ace"l ever 9'which is pivoted by means 0 a vertical-pivot -stud-10: s5 on a'l'iigllprojecting from the outer side of the rear part' of theend wall 3' .ofthej platen fraiheqgdtNear the pixotstud '10,- the.

[line-space levdi 9is shown as slightly 'ofi'set upwardly at 1 in orderto clear the. top of '90 the end wall of the platen frame, andfromthisofiset 12 the line-space lever 9 is straight and extendssubstantially horizontally forward beyond the end Wall 3 to-apoint-within easy reach. of the operator, as

above'and at the back of the usual keyboard,

end part 13 which is at right angles to the mainlever part. 9, andwhich, in the normal position of thelinespace lever shown in thedrawings, is substantially parallel to the platen 1. The end-of thistransverse lever part 13 is provided atthe front thereof with ashouldered screw-stud 14 forming a horizontal pivotal support for afinger-piece 15,-

forming a ti 'on"the end of the line-space lever at a point well forwardof the platen and platen frame, and 'which in its normal upstandingpgsition rises from a point to 'the left of the pivot-stud 14 on a curvelaterally toward the left, so that the upper rounded and of thisfingeriece 15 occupies a posi- "t-ion at an angle 0 about forty five derees upward and to the left of the axis 0 'the pivot-stud 14, as shownin full lines in Fi are 1 and in broken lines in Figure 2. heel-part 16forms a short downward continuation ofthe inner curve of the fingerpiece15 below and at the left of the pivotstud 14, and this heel-part 16carries a rearwarcllyrejecting s'to -lug 17 which normally a utsaga'instt e-lower side of the 4 transverse end part 13 of the line-space lever 9to-preven=t.the fingeriece 15; from turning over toward the right whenpressure is applied to effect a line-spacing operation,

but permitting the fingeriece 15 to be folded toward the left and sideof and in compact relation to the lever end part 13 from the broken-lineposition indicated in Figure 2 to the full-line position thereshown.

A; coiled torsion spring 18 is contained and conccaled ,withi-n acircular channel 19 via formed in the front face of the lever endnrt'lB, the rear end of this springlS being anchored to the lever end 13in a recess 20 at the bottom of the'channel 19, and the ther 015-for-ward end of this spring being mined outwardly and receivedintoarecess in the adjacent face of the finger-piece 15, the -spring 18 beingarranged to exert a clockwise tor no on the finger-piece 15 as viewedfrom t e front, for thereby normally yieldingly holding the stop-lug 17against the lever art 13 with the finger-piece 15in its norma upstandingposition of-use, shown in Figpre 1 in full lines and as indicated in broen lines in Figure 2. By reason of this iconstruction, the finger-piece15 will hava tendency to, and will normally ocrupy, an upstandingposition ready for use to effect a line-spacing o eration, but may bepressed downward to t e above-described position of non-use from whichit will auto mntically return when released to the normal upstandingposition of use. r

In its upstanding position of use, the finger-piece '15 projectssubstantially throughout its 'full length above other elevated parts ofthe machine, such for example, as

' the-upper end of the pivot-stud 10 an v he ownwardly along top of theusual paper-table 22 which forms a part of the platen frame, and as willbe clear from an inspection of Figure 2. In Figure' 2, the lower or mainbody part 23 of the typewriting machine is shown diagrammatically inoutline below the platen 1 and supports the end wall 3'and other partsof the laten frame, together with the parts carri thereby. The main bodypart 23 of the typewriter is provided with the usual supporting pads orlegs 24 for en porting the typewriting machine, which is s own assupported upon a flanged base 25 to which it' may be rigidly secured inany suitable way, such as by means of screws, not shown.

The supporting base 25 forms the bottom of a casing for completelyenclosing and rotecting the typewriting machine, an of which a box-likecasing part or cover 26 forms the remainder of the complete casing.

The cover part 26 may be removably secured in place on the bottom orbase part 25 byv any suitable means, not shown, but well understood inthe art. When the cover part 26 is placed in position over the machine,

the top low and in contact with the inner surface of the top wall of theenclosing cover. part 26 of the casing.

After the cover part 26has been secured in place on the base part 25 ofthe casing,

the closed casing with the typewriter firmly held therein may beconvenientl carried in like manner to a small suitcase ii 7 means of asuitable loop handle provided for that urpose, and as is wellunderstood-bythose amiliar with portable typwriting machines. The basepart or bottom 25 usually forms one of the larger si'dcsof the enclosingcase, and the top wall of the cover part 26 forms the opposite largerside of the casing. When the machine is-to be used the casing rests uponits base 25, and the enclosing upper cover part 26 is removed, whereuponthe spring-pressed fin r-piece 15 will then automatically rise rom. its

folded'position of non-use shown in full lines in Figure 2 to theupstanding position of use thereof shown in broken lines inFigure 2 andin full lines in Figure 1.

In the operation of the device it will be clear from the foregoingdescription that the s long forwardly-extending line-space lever 9 withits transversely turned forward end part 13, provided with normally'upIll) standing foldable finger-piece 15, provides both ea y andconvenient means for operating the line-spacing mechanism, and returningthe carriage, and also provides for the safe, compact andcomplete'enclosure of the typewriting machine Within its usual carryingcase comprising the base part and the cover part 26.. I l

Also, in the operation of the device, 1t'1s vto be notedthat it is onlynecessary to place the cover 26 over the machine in the usual way whenit is desired to protect or carry th e'mach ne, and merelyto remove thiscover in the usual way when the machine is to be,v used.

Variationsmay he resorted 'to within the scope of the invention, andportions of the improvementsmay. he used without others. Having thusdescribed my invention, I

' claim v In a typewriting machine having a. rotative platen,line-spacing mechanism therefor, including an upstanding finger-piecethen'nrchine'engageable with the upstanding mounted for movement to alower position 25" normal tendency to rise to its ipstanding. .positionand being adapted to be pressed when out of use, said finger-piecehaving a downward to its lower position oi. non-use Uby'a cover for themachine and to rise automatically to its upstanding position of when thepressure of the cover removed.

In combination, ina typewriting in'a chineJhavinga'rotative platen and acasing ior the machine, line-space mechanism for the platen, including alinger-piece adapted to heapressed fromnormal position to a po sition ofnon-use by Q -SGCtIOH of the casing enclosing thelatter, z ndmeans 1'01automatically returningthe finger-piece to its normal position, for.operation thereof, when thefcasing is removed fromthe finger-piece.

'3. In combination, in a ty ewriting machine, a .'1 'otative platen anline-spacing mechanism for the'fplateri including a for-\vardlye'xtendingdine-space lever, a normally upstanding downwardly-movahle finger-piece movably ,n'iounted on the lor-' ward end'o' f theline-space lever, and yielding means forjautomatically returning thefinger-piece from a lowered'to-the upstanding posit-ion and forfn'or'n'ally holding it at thegupstanding position and a cover for lingerpiece' to press "it' downward to its an the machine, and enabling saidyielding 'meansto return ,the' finger-piece to its uptinding positionjwhen the cover is lifted onifthe nnichine'. v I 1 i In combination, ina tyiewriting machine, a rotative'pluten ant line spacing mechanism forthe platen including a torv:ardly e itending line-space lever and a'norinallyeupstandingdownwardly-foldable fingerpiece pivotally mountedon th-e for.-

mechanism for the platen includin .fingerh-piece pivot-ally in t ntedo'nfth'e forioweredposition when the cover is. placed,

ward end of the line-space lever, said fingerpiece having a normaltendency to'swin to its upstanding position and being adapte to bepressed downward to its folded position by a cover for the machine andto rise automatically to i its upstanding position when the pressure ofthe cover is removed- 5. In combination,-i'n a tygewriting ma chine, arotative platen an line-Spacing wardly-extending horizontally-move, 1eline" space lever provided with alateral in wardly-extending forward endpart, and a normally-upstanding finger piece pivoted to saidinwardly-extending end part of. the

line-space leverto fold laterally outwardly and downwardly to a positionof non-use alongside of said. inwardly-extending end 1 part oftheline-space lever, said finger-piece? upstanding position and beingadaptedto'" be pressed downward to its folded position by a cover forthe machine and to riseautomatically to its upstanding position ojf nse'having a normal tendencyto swing to it s" 1 when the pressure of thecover is removed.

(i. In combination, in a typewritingfinaia chine, a .rotative platen andline-spacing mechanism for the platen including a for} wardly-extendinghorizontally-movable linespace lever provided with alateralinwardlyextending forwardend' part, an upwardly and laterallyoutwardly curved finger-piece normally upstanding. from the line-spacelever and pivoted on said"inwardly-extendlaterally outward and down-wardalongside thereof, and yielding means for automatically returning thefinger-piece to and for normally holding it at the upstanding poing endpartof the line-space 'levcrto. fold l sition; and a cover for themachine cngageable with the upstanding finger-piece to press it downwardtoits folded position when the cover is' placed on the machine and toenable said yielding means to return the finger-piece from its folded toits upstanding position when the coveris lifted. v

7. Incombin'ation, in a typewriting Inachine, a' rotative platen, aplatenframe in which the platen is journaledfand line-spacing mechanismfor the platen including a I line-space lever pivoted on thejplatenframey and )I'O]Ctlllg forward from the" platen frame, an upstandingdo\vnwardly-foldable ward 'endof the line-spacelever,.and yielding meansfor auton'ia-tic'ally returning the finger-piece fromwits folded to itsupstanding position and foi" normally holding it at the upstanding,-;p.os'ition; and a cover for v the machine enagageable. with theupstand-fl ing finger-pie'ce tof press it down ate the j folded.]iositio11.-;wl1e1r the cover is placed; on the roachi ne,"; wherebythe finger-piece may project for line-spacingi-use and may ,fold .outjof the way-of the cover. J

8. In combination, in a typewriting machine, a rotative platen, a platenframe in which the )laten is joui'naled, and linespacin inec ianism forthe platen including a orizontally-movable line-space lever pivoted onand extending forward from one end of the platen frame, the'line-spacelever being provided with a forward end part extending from the-mainpart of the lever transversely horizontally inward, and an upwardly andlaterally outwardly curved finger-piece pivoted to the said transverselyextending and part of the line-space lever, so as to fold laterallyoutward and downward alongside of said transversely-extending end partof the line-space lever to a position ofnon-use, said finger-piecehaving a normal tendency to move automatically to its'upwardlyprojecting position of use.

9. n co nbinatio'n, in a typewriting machine, a rotative platen, aplaten, frame in which the laten. is jonrnaled, and linespacing mecanism for the platen including a horizontally-movable line-space leverpivoted on and extending forward from one end of the platen frame, theline-space lever being provided with a forwardeiid part-ex tending fromthe main part of the lever horizontally inward substantially at rightangles to the main part of the lever,.an upwardly and laterallyoutwardly curved finger-piece. pivoted to the said inwardly-' extendingend part of the line-space lever, to as to fold laterally outward anddownward alon i'de-o'f said inwardly-extending end part o the line-spacelever to a position of non-use, and a' spring concealed between the saidinwardly-extending end part of the v linespace lever and thefinger-piece for rocking the latter upon its pivot from its foldedpositionof non-use to its upstanding position of use and for normallyyieldingly'holdingf it at thislposition of use.

' 10. lncombination, in a typewriting machine, a rotative platen, a.platen frame in which the, platen is jonrnaled, and line-spacmechanismfor the platen includinga horizontallymovable linespace leverpivextending from the main oted on and extending forward from one end ofthe platen frame, the line-space lever part, of the leverhorizontally-inward substantially at right angles to the main part ofthe lawn-and .-upwardly and laterally outwardly 'curved normallyupstanding finger-piece pivoted to provided with a forward end parttheisaid inwardly-extending end part of the line-space lever, so as tofold laterally out ward and downward alongside of'said inwardlyextending end part of the line-space chine having a carriage and arotative platen thereon, and also having'line-spacing andcarriage-returning means, including an elevated finger-piece on saidcarriage, and a cover for the machine engageable with said fingeriece,the latter being foldable CO1llPilLtly own from normal position by saidcov'er, and means associated with said carriage for holding saidfinger-piece in elevated normal position; said holding means beingyielding, thereby permitting the cover to effect the folding.

i 12. Iii combination, in a typewriting inachine, a rotative platen, aline-spacing mechanism for the platen including a line-space leverextending forwardly from a vertical pivot, a normally elevatedfinger-piece on said lever forward of said pivot, said finger-- piecemounted on'said lever by means of a horizontal pivot to fold downwardly,andmeans normally holding saidv finger-piece in elevated position.

13. In combination, in a typewriting.machine, a rotative platen, aline-spacing mechanism for the platen including a linespaceleverextending forwardly from a vertical. pivot, a normally elevatedfinger-piece on said lever forward of said pivot, said fingerpiecemounted on said leverby' means of a horizontal pivot to fold downwardly,and

means normally holding said finger-piece in elevated position, anda'cover for the machine engageable with the elevated fingerpiece topress it downward about said horizontal pivotin the ac'tof dropping thecover over themachine. l iLFRE e. F. K RoWsKi.

Witnesses Janina Qa. NOONAIi,

lever to a position of nonuse, a coiled tor v 11. In combination, atypewriting ina-

